211121022012002 has 4 divisors (see below), whose sum is σ = 316681533018006. Its totient is φ = 105560511006000.

The previous prime is 211121022011951. The next prime is 211121022012011. The reversal of 211121022012002 is 200210220121112.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 140013948897001 + 71107073115001 = 11832749^2 + 8432501^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 52780255502999 + ... + 52780255503002.

Almost surely, 2^{211121022012002} is an apocalyptic number.

211121022012002 is a deficient number, since it is larger than the sum of its proper divisors (105560511006004).

211121022012002 is a wasteful number, since it uses less digits than its factorization.

211121022012002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105560511006003.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 211121022012002 its reverse (200210220121112), we get a palindrome (411331242133114).

The spelling of 211121022012002 in words is "two hundred eleven trillion, one hundred twenty-one billion, twenty-two million, twelve thousand, two".